Yes, you fill the head set races full of bearings, but leave the space for the last one empty. I grease up the lower headset race on the fork, load the bearings on it, grease and load the pressed in cup race on the top of the frame and carefully slip the fork tube through and screw on the upper race while I hold the fork in place. Same sort of thing with the bottom bracket since I don't remove the fixed cup. I grease and load up the adjustable cup, get grease into the fixed cup with a stick, then place the 11 bearings on the drive side of the greased spindle and carefully pass it through then hold the drive side end while I screw the adjustable cup back in place.